The World Health Organization has certified type 3 of the wild poliovirus as eradicated. This is big news! We have also gone three years without any wild poliovirus on the continent of Africa. It may soon be certified polio-free.The final mile of our journey is a difficult one. Pakistan and Afghanistan are great challenges for us — but we have met so many great challenges before. Every time a goal has seemed out of reach, Rotarians have stood together and answered the call.